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Fair Value Measurements (Details Textual) (USD $)
 12 Months Ended 12 Months Ended 1 Months Ended 12 Months Ended 1 Months Ended 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2013
First warrant [Member]
Dec. 31, 2012
First warrant [Member]
Dec. 31, 2013
Using Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Dec. 31, 2012
Using Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Dec. 31, 2013
Using Significant Unobservable Inputs (Level 3) [Member]
warrant
Dec. 31, 2012
Using Significant Unobservable Inputs (Level 3) [Member]
Dec. 31, 2011
Using Significant Unobservable Inputs (Level 3) [Member]
Sep. 30, 2012
Using Significant Unobservable Inputs (Level 3) [Member]
First warrant [Member]
Dec. 31, 2013
Using Significant Unobservable Inputs (Level 3) [Member]
First warrant [Member]
Mar. 31, 2013
Using Significant Unobservable Inputs (Level 3) [Member]
First warrant [Member]
Mar. 31, 2012
Using Significant Unobservable Inputs (Level 3) [Member]
Second warrant [Member]
Dec. 31, 2013
Using Significant Unobservable Inputs (Level 3) [Member]
Second warrant [Member]
Mar. 31, 2013
Using Significant Unobservable Inputs (Level 3) [Member]
Second warrant [Member]
Marketable Securities and Fair Value Measurements (Textual) [Abstract]                                
Number of shares held in an affiliated entity           8,220,775 8,220,775                  
Number of warrants received to purchase shares of common stock               2                
Common stock purchase warrant               21,164,997         1,000,000     3,000,000
Term of the warrants in years                       5 years     5 years  
Exercise price of a five-year warrant                     $ 1.20     $ 1.00    
Long-term asset associated with warrants $ 718,000                              
Gain on sale of asset 501,000                              
Change in the fair value 46,082,969 (2,316,420) (8,827,658) 450,000 (334,000)     46,082,969 (2,316,420) (8,827,658)            
Common stock warrants $ 19,540,583 $ 2,859,899